Dale was married to a woman named Irma for years. Early in their marriage, they had attempted to have a baby, but it ultimately miscarried, which led them to not try again. At some point later, she had developed cancer. Despite Dale bringing her to several doctors, she had already accepted the disease and her eventual death, much to his dismay. Once he retired from his job, he planned to take his wife traveling with him across the country in a new RV he bought, but she died before that could happen.
Her death brought him into a great depression and he found himself not caring about anyone around him. He decided to take his RV and do the trip alone. When the outbreak began, he first encountered Andrea and Amy in distress, and the three of them soon joined up with Shane's group and settled in a quarry on the outskirts of Atlanta. He cared increasingly for Andrea and Amy during their stay at the campsite, and used his RV as a type of "command post" for the group.
A walker Carl had previously been examining in the marshy lands near Hershel's farm freed itself after Carl provoked it while its legs were trapped, and wandered onto the property. Dale later patrolled the grounds and stumbled upon a cow that had been attacked by something unknown to him at the time. After hearing something behind him, Dale turned around to see the same walker Carl had seen earlier. It attacked him and, while he prevented it from biting him, the walker ripped open Dale's stomach. Daryl came to his rescue and killed the walker. The rest of the group reached the dying Dale, bleeding out from his wounds. Rick demanded that they move Dale to the house to operate on him, but Hershel informed him that he would be unable to save Dale in his critical condition. Carl, upon seeing the walker, realized he was partly responsible for what happened and cries.
Rick lifted his gun and pointed it at Dale's head in an attempt to put him out of his misery, but could not bring himself to do so. Instead, Daryl took Rick's gun, pointed it at Dale and said, "Sorry, brother," before shooting him.
Plenty of parking is available in the Huntington Art Museum parking lot. The actual trail is about little over a mile long and does give you a little cardial work out. This cache is located off the trail. There is also another Walking Dead cache besides three other caches located on the trails. Plenty of benches to rest on are spread out throughout the trails. Take a day and enjoy. Wildlife abundant. You never know what you'll see.